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Author Topic: obd-2 to obd1 conversion?  (Read 5257 times)

MAJORAHOLE

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obd-2 to obd1 conversion?
« on: June 08, 2010, 10:17:52 AM »

is that a bitch, i have z6 in my 95 and i found a 96 shell in decent condition for $900. i havent bought it, not sure if i will, but is it a total bitch to change?

also been looking the newer 96-2000 hatches too
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PhilStubbs

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Re: obd-2 to obd1 conversion?
« Reply #1 on: June 08, 2010, 12:50:59 PM »

It's pretty simple, if you can put a z6 into an eg, you can put one in an ek
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obd1>gtgtall

 fucking box started smoking and i saw a flame start up so i grabbed a bucket of water and splashed it on the breaker box.

MAJORAHOLE

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Re: obd-2 to obd1 conversion?
« Reply #2 on: June 08, 2010, 12:55:31 PM »

i have never swapped a engine before, the my 95 is an ex and it came in there. i just wasnt sure if the harness and everything needed to be swapped too
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Joseph Davis

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Re: obd-2 to obd1 conversion?
« Reply #3 on: June 08, 2010, 01:11:32 PM »

Use the 96 wiring harness, if it exists, and buy an OBD2A-OBD1 jumper to plug your ECU into. 

I do not recommend trying to fit your 95 wiring harness into the 96 - that you have to ask about it lets me know you'd be in over your head.  I could do it, have done it, but what I'd charge to do it is a bit more than buying another engine harness.

snm95ls

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Re: obd-2 to obd1 conversion?
« Reply #4 on: June 08, 2010, 01:18:12 PM »

Good luck finding a 96-98 EX engine harness for a decent price.  You better plan on doing your own VTAK wiring.

MAJORAHOLE

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Re: obd-2 to obd1 conversion?
« Reply #5 on: June 08, 2010, 01:33:24 PM »

NOTHING IS OVER MY HEAD!!!     j/k now that im thinking about it, i might want to leave the harness in my old car, so later i can put another engine in it and sell it as drivable, though i dont know.
nothing solid yet, just somewhat planning it out. id really like 92-95 hatch, there are a few within 250miles that run, but dont look all that great
 
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MAJORAHOLE

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Re: obd-2 to obd1 conversion?
« Reply #6 on: June 08, 2010, 01:35:15 PM »

just looked and that shit is pretty cheap, ill probably do that if i need
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chris

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Re: obd-2 to obd1 conversion?
« Reply #7 on: June 10, 2010, 04:25:31 AM »

you will need the 96-00 d series driver side bracket also


Plus figure out what dist you want to run. You can hack up a obd2a d series dist to fit onto the z6 head 2 bolts will line up after some grinding/large washers to mount too if you dont want to do any re pinning of the obd1 dist



You also if the car is a dx/lx/cx convert the iacv to a 2 wire. The d16y7 comes with a 3 wire iacv which is mounted on the throttle body unlike the d16z6 which is on the intake manifold


You also will need the 96+ d series rear transmission bracket d series.
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98vtec

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Re: obd-2 to obd1 conversion?
« Reply #8 on: June 10, 2010, 11:29:43 AM »

I mapped out the conversion for my prelude to go full obd1 and its a shitload of work. Its not really difficult, you just need to be super organized as it is very tedious.   
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Joseph Davis

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Re: obd-2 to obd1 conversion?
« Reply #9 on: June 10, 2010, 11:51:28 AM »

I mapped out the conversion for my prelude to go full obd1 and its a shitload of work. Its not really difficult, you just need to be super organized as it is very tedious.   

You must have some Prelude that I've never seen before.

mrgreengenes

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Re: obd-2 to obd1 conversion?
« Reply #10 on: June 10, 2010, 03:49:51 PM »

I mapped out the conversion for my prelude to go full obd1 and its a shitload of work. Its not really difficult, you just need to be super organized as it is very tedious.   

You must have some Prelude that I've never seen before.

must be doing it the hard way... pic from his garage...
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chris

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Re: obd-2 to obd1 conversion?
« Reply #11 on: June 10, 2010, 03:57:31 PM »

why are we talking about preludes?
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98vtec

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Re: obd-2 to obd1 conversion?
« Reply #12 on: June 10, 2010, 07:04:21 PM »

I mapped out the conversion for my prelude to go full obd1 and its a shitload of work. Its not really difficult, you just need to be super organized as it is very tedious.   

You must have some Prelude that I've never seen before.

more work than i wanted to do.
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snm95ls

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Re: obd-2 to obd1 conversion?
« Reply #13 on: June 10, 2010, 08:21:12 PM »

why are we talking about preludes?

Joseph Davis

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Re: obd-2 to obd1 conversion?
« Reply #14 on: June 12, 2010, 09:51:18 AM »

I mapped out the conversion for my prelude to go full obd1 and its a shitload of work. Its not really difficult, you just need to be super organized as it is very tedious.   

You must have some Prelude that I've never seen before.

more work than i wanted to do.

Two hours?

HiProfile

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Re: obd-2 to obd1 conversion?
« Reply #15 on: June 13, 2010, 05:55:35 AM »

I mapped out the conversion for my prelude to go full obd1 and its a shitload of work. Its not really difficult, you just need to be super organized as it is very tedious.   

You must have some Prelude that I've never seen before.

must be doing it the hard way... pic from his garage...

Wow, did someone not realize most of the car wiring is NOT part of on-board diagnostics? My first major rewire was obd0-1 combined with mpfi conversion. The most time consuming part was soldering and, which was juuuust beyond the time needed of finding a decent shielded wire for the added dizzy sensor. Anyone not using a decently constructed jumper is either poor as fuck or is a completely anti-social anthropophobe.
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MAJORAHOLE

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Re: obd-2 to obd1 conversion?
« Reply #16 on: June 14, 2010, 12:40:26 PM »

well this whole idea is on hold for now, thanks to the michigan police....
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98vtec

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Re: obd-2 to obd1 conversion?
« Reply #17 on: June 14, 2010, 11:52:10 PM »

I mapped out the conversion for my prelude to go full obd1 and its a shitload of work. Its not really difficult, you just need to be super organized as it is very tedious.   

You must have some Prelude that I've never seen before.

more work than i wanted to do.

Two hours?

eh, i remember what i was doing.  I had a fucked up engine harness, had another harness but it was OBD1.  I mapped out the shock tower plugs, not all the way to the ecu.  That took a little while and after getting it all done, i found a obd2 harness for 50 bucks so i went the easier route.
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